1) The shape of a liquid’s meniscus is determined by ________.
A) the viscosity of the liquid
B) the type of material the container is made of
C) the relative magnitudes of cohesive forces in the liquid and adhesive forces between
the liquid and its container
D) the amount of hydrogen bonding in the liquid
E) the volume of the liquid
2) Which of the following equations shows an incorrect relationship between pressures
given in terms of different units?
A) 1.20 atm = 122 kPa
B) 152 mm Hg = 2.03 x 104 Pa
C) 0.760 atm = 578 mm Hg
D) 1.0 torr = 2.00 mm Hg
E) 1.00 atm = 760 torr
3) The kinetics of the reaction below were studied and it was determined that the
reaction rate did not change when the concentration of B was tripled. The reaction is
________ order in B.
A + B –> P
A) zero
B) first
C) second
D) third
E) one-half
4) Electromagnetic radiation with a wavelength of 640 nm appears as orange light to
the human eye. The frequency of this light is ________ s-1.
A) 4.688 X 1014
B) 4.688 X 105
C) 1.920 X 102
D) 1.920 X 1011
E) 2.133 X 10-15
5) The element that has a valence configuration of 5s25p6 is ________.
A) Xe
B) Rn
C) Ne
D) Ar
E) Kr
6) The spectator ions in the reaction between aqueous hydrofluoric acid and aqueous
barium hydroxide are ________.
A) OH–, F–, and Ba2+
B) F– and Ba2+
C) OH– and F–
D) Ba2+ only
E) H+, OH–, F–, and Ba2+
7) How many oxygen atoms are contained in 2.74 g of Al2(SO4)3?
A) 12
B) 6.02 x 1023
C) 7.22 x 1024
D) 5.79 x 1022
E) 8.01 x 10-3
8) The Ka of hydrofluoric acid (HF) at 25.0 oC is 6.8 x 10-4. What is the pH of a 0.45 M
aqueous solution of HF?
A) 4.05
B) 1.76
C) 3.64
D) 0.35
E) 1.41
9) A compound was found to be soluble in water. It was also found that addition of acid
to an aqueous solution of this compound resulted in the formation of carbon dioxide.
Which one of the following cations would form a precipitate when added to an aqueous
solution of this compound?
A) NH4
+
B) K+
C) Cr3+
D) Rb+
E) Na+
10) Given the following reactions
CaCO3 (s) → CaO (s) + CO2 (g) ΔH = 178.1 kJ
C (s, graphite) + O2 (g) → CO2 (g) ΔH = -393.5 kJ
the enthalpy of the reaction
CaCO3 (s) → CaO (s) + C (s, graphite) + O2 (g)
is ________ kJ.
A) 215.4
B) 571.6
C) -215.4
D) -571.6
E) 7.01 x 104
11) The ion ICl4
– has ________ valence electrons.
A) 34
B) 35
C) 36
D) 28
E) 8
12) The concentration of a gas is 3.18 103 ppm at in a container where its partial
pressure is 0.591 torr. The total pressure inside the container must be
A) 1.86 10-10
B) 5.38 10-3
C) 1.86 10-4
D) 1.88 103
E) 1.88 109
13) Six-coordinate complexes generally have ________ geometry.
14) What group 5A element is the most metallic?
15) The electron configuration that corresponds to the Lewis symbol, is
________.
16) List two of the three major sources of nitrogen and phosphorus in water.
17) Under appropriate conditions, nitrogen and hydrogen undergo a combination
reaction to yield ammonia:
N2 (g) + 3H2 (g) → 2NH3 (g)
A 9.3-g sample of hydrogen requires ________ g of N2 for a complete reaction.